Type II magic was suppose to be a balanced environment with no overpowered cards that everyone must have. This worked for 2 years as the new sets were so well done that no card even needed to be restricted. Then came Urza's Saga. This is perhaps the worst set WOTC has made since the original set. It is full of bad, broken, and abusable cards which WOTC even had to acknowledge by banning Tolarian Academy, and Windfall in Type II (along with many other formats). This hopefully has killed the most powerful Type II deck ever -- the Tolarian Academy deck, but what remains for the new environment until Urza's Legacy comes out.